function downloadIamge(imgsrc, name) {
    //下载图片地址和图片名
    var image = new Image();
    // 解决跨域 Canvas 污染问题
    image.setAttribute("crossOrigin", "anonymous");
    image.onload = function () {
     var canvas = document.createElement("canvas");
     canvas.width = image.width;
     canvas.height = image.height;
     var context = canvas.getContext("2d");
     context.drawImage(image, 0, 0, image.width, image.height);
     var url = canvas.toDataURL("image/png"); //得到图片的base64编码数据
    
     var a = document.createElement("a"); // 生成一个a元素
     var event = new MouseEvent("click"); // 创建一个单击事件
     a.download = name || "photo"; // 设置图片名称
     a.href = url; // 将生成的URL设置为a.href属性
     a.dispatchEvent(event); // 触发a的单击事件
    };
    image.src = imgsrc;
    }
    window.onload=function(){
        var as = document.querySelectorAll('.tb-recommend-content clearfix')
    
    var data = [];
    for (var i =0;i<as.length;i++){
        // 1.把图片全找出来
        var img =as[i].querySelector('img').src;
        downloadIamge(img,img.split('/').reverse()[0])
        //2.对应的文本和价格找出来  
        data.push({
            src:img.split('/').reverse()[0],
            title:as[i].querySelector('.title').textContent,
            price:as[i].querySelector('.price-value').textContent,
        }
            )
    }
    }

console.log(data)





    










